Connection member of movable type camp having good detachability

ABSTRACT

The present invention discloses, a connection member of a movable type camp with a good detachability comprising: a main pipe and an auxiliary pipe having a penetration hole at a predetermined portion of its external circumference surface, respectively; an elastic member having a “⊃” shape attached to the inside of the auxiliary pipe so that a constant elastic force is generated toward the inside circumference portion from the center of the auxiliary pipe; and a connection protrusion formed at the top surface of the upper end portion of the elastic member, which is inserted to the penetration holes of the main pipe and the auxiliary pipe and exposed to the outside, whereby the assemble and disassemble processes of the framework are performed easily.

TECHNICAL FIELD

The present invention relates to a connection member of a movable typecamp having a good detachability, and more particularly to a connectionmember of a movable type camp having a good detachability in which aninsertion hole is formed at a main pipe and an auxiliary pipe,respectively, when connecting them, a connection protrusion capable ofcombining to the inserting holes simultaneously may be elasticallyprotruded from the inside of the auxiliary pipe, and inclined surfaceswith a constant angle are formed at the front surface portion and a sidesurface portion of the connection protrusion forassembling/disassembling easily the pipe.

BACKGROUND ART

As is generally well known, various types of a field barrack or camphave a tent shape structure widely known. According to the technicalgist of the general field barrack and the camp, they are maintained witha tunnel shape by using a long pole combined with plural poles and havea structure for preventing the body shape of the field barrack or campfrom modifying by the impact from the outside and simultaneously forassembling and disassembling the poles easily.

According to the above conventional field barrack or camp, its entireframework or structure is comprised of only a long pole as a main pipeand plural poles combined to the long pole, and cloth is covered on theupper portion of the framework. Since the plural poles are combined andsupported to the long pole, in general, the long pole and plural polesare combined with an interference fit method, and the long pole andother poles are connected with an elastic wire.

However, there is a disadvantage that in the combining structure of theinterference fit method, when the plural poles are inserted frequentlyto an inlet portion of the long pole, the inlet portion is expanded sothat the combined pole is disassembled easily by a weak external force.

In order to solve the foregoing problem, recently a connection memberconstructed by at least two or more poles, as a set, in which its endportion is inserted to the inside of the other pipe is released. In sucha connection member, a connection protrusion with an elastic force isformed at an external circumference portion of a pipe and apredetermined penetration hole is formed at an end portion of anotherpipe, so that the connection force can be maintained by inserting theconnection protrusion to the penetration hole.

However, according to the above conventional connection member havingthe connection protrusion, there are several disadvantages that sincewhen combining the two pipes, a user must press the connectionprotrusion by using one's own finger, and when disassembling the pipes,there can be disassembled only when the user also must press theconnection protrusion protruded through the penetration hole and so theconnection force is removed, the connection member is very inconvenientin use and in a case that a finger is caught in the penetration holewhen pressing the protruded connection protrusion, a user may receive awound.

DISCLOSURE OF THE INVENTION

An object of the present invention is to provide a connection member ofa movable type camp having a good detachability in which an insertionhole is formed at a main pipe and an auxiliary pipe, respectively, whenconnecting them, a connection protrusion capable of combining to theinserting holes simultaneously may be elastically protruded from theinside of the auxiliary pipe, and inclined surfaces with a constantangle are formed at the front surface portion and a side surface portionof the connection protrusion for assembling/disassembling easily thepipe.

In order to achieve the above-described object of the invention, thereis provided, in a framework connection structure of a camp in which theframework is constructed by a main pipe having a predetermined diameterand openings formed its both ends, respectively and an auxiliary pipeinserted to the main pipe for forming the framework, a connection memberof a movable type camp with a good detachability comprising: the mainpipe and the auxiliary pipe having a penetration hole at a predeterminedportion of its external circumference surface, respectively; an elasticmember having a “⊃” shape attached to the inside of the auxiliary pipeso that a constant elastic force is generated toward the insidecircumference portion from the center of the auxiliary pipe; and aconnection protrusion formed at the top surface of the upper end portionof the elastic member, which is inserted to the penetration holes of themain pipe and the auxiliary pipe and exposed to the outside, whereby theassemble and disassemble processes of the framework are performedeasily.

Preferably, the connection protrusion has a front surface inclinedportion formed with a predetermined angle α by a grinding process at itsfront surface portion, so that when connecting the main pipe and theauxiliary pipe, the opening of the main pipe can press the connectionprotrusion.

More preferably, the connection protrusion has a side surface inclinedportion formed with a predetermined angle β by a grinding process at itsside surface portion, so that when disassembling, when the auxiliarypipe is rotated toward a direction, the penetration hole of the mainpipe can press the side surface inclined portion of the connectionprotrusion.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the appearance of a connectionmember of a movable type camp with a good detachability in accordancewith the present invention;

FIG. 2 is an exploded perspective view showing a connection member of amovable type camp with a good detachability in accordance with thepresent invention;

FIG. 3 is a perspective view showing an elastic member in a connectionmember of a movable type camp with a good detachability in accordancewith the present invention; and

FIGS. 4 a and 4 b are views showing an inclined angle of a connectionprotrusion of an elastic member in a connection member of a movable typecamp with a good detachability in accordance with the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

A connection member of a movable type camp with a good detachability inaccordance with the present invention will now be described in detailwith reference to the accompanying drawings.

FIG. 1 is a perspective view showing the appearance of a connectionmember of a movable type camp with a good detachability in accordancewith the present invention and FIG. 2 is an exploded perspective viewshowing a connection member of a movable type camp with a gooddetachability in accordance with the present invention.

Referring to FIGS. 1 and 2, a connection member 2 of a movable type campwith a good detachability in accordance with an embodiment of thepresent invention comprises a main pipe 4 forming a framework of a campand an auxiliary pipe 6 in which its end is inserted to an end of themain pipe 4. The main pipe 4 is a hollow type and a general pipe inwhich an opening 8 is formed at its both ends, respectively, and apenetration hole 4 a is formed at its external circumferencepredetermined portion.

Also, in the auxiliary pipe 6, the diameter until its externalcircumference surface is the same as the diameter until internalcircumference surface, so that an end portion of the auxiliary pipe canbe inserted to the opening 8 of the main pipe 4. A penetration hole 6 ais formed at its external circumference predetermined portion like themain pipe 4.

On the other hand, in the present invention, a “⊃” shape of an elasticmember 20, which is inserted to the inside of the auxiliary pipe 6 andgenerates a constant elastic force toward the internal circumferencesurface from the center of the auxiliary pipe 6 is provided. A lower endof the elastic member 20 is welded to the internal circumference surfaceof the auxiliary pipe 6 facing to the penetration hole 6 a of theauxiliary pipe 6.

Also, a connection protrusion 30 inserted through the penetration holes4 a and 6 a formed at the main pipe 4 and the auxiliary pipe 6 andexposed to the outside is formed at an upper surface of an upper sideend portion of the elastic member 2 0. Since the elastic member 20 isfixed to the internal circumference surface of the auxiliary pipe 6, theconnection protrusion 30 is always exposed through the penetration hole6 a of the auxiliary pipe 6.

Accordingly, when connecting the main pipe 4 and the auxiliary pipe 6,the connection protrusion 30 exposed through the penetration hole 6 a ofthe auxiliary pipe 6 is fitted in the penetration hole 4 a formed at themain pipe 4, thereby accomplishing the connection simply. At this time,when moving the connection protrusion 30 along the internalcircumference surface of the main pipe 4, the connection protrusion 30presses the elastic member 20 and is inserted with a constant lengthtoward the inside of the pipe, and at such a state, an end portion 10 ofthe auxiliary pipe 6 can be inserted easily along the insidecircumference surface of the main pipe 4.

Especially, in the connection protrusion 30 provided to the connectionmember of a movable type camp with a good detachability in accordancewith the present invention, its shape is characterized in that whenassembling and disassembling the main pipe 4 and the auxiliary pipe 6,the assemble and disassemble processes are performed easily. Detailedexplanation about the shape of the connection protrusion 30 will bedescribed hereinafter with reference to FIGS. 3, 4 and 5.

FIG. 3 is a perspective view showing an elastic member in a connectionmember of a movable type camp with a good detachability in accordancewith the present invention and FIGS. 4 a and 4 b are views showing aninclined angle of a connection protrusion of an elastic member in aconnection member of a movable type camp with a good detachability inaccordance with the present invention.

Referring to the above drawings, in the connection member of a movabletype camp with a good detachability in accordance with the presentinvention, an elastic member 20 is curved with a “⊃” shape andcontracted, so that an elastic force is generated. At this time,according to the curved elastic member 20, when expanding the elasticmember 20, an expansion force do not applied exactly toward an upperdirection. Accordingly, in order to connect the connection protrusion 30easily through the penetration holes 4 a and 6 a, an inclined angle witha predetermined angle α, as shown in FIG. 4 a, is formed at the frontsurface of the connection protrusion 30 by a grinding process, therebyforming a front surface inclined portion 30 a.

Especially, since the front surface inclined portion 30 a of thepredetermined angle α formed at the front surface portion of theconnection protrusion 30 in accordance with the present invention isformed toward the connection direction of the main pipe 4, wheninserting and connecting the auxiliary pipe 6 to the main pipe 4, anopening 8 of the main pipe 4 presses to the front surface inclinedportion 30 a of the connection protrusion 30, so that the connectionprotrusion 30 is pressed naturally, moved downwardly and connected.

Also, preferably, when disassembling the auxiliary pipe 6 from the mainpipe 4, in order to disassemble the auxiliary pipe easily, a left sidesurface inclined portion 30 b with a predetermined inclined angle β, asshown in FIG. 4 b, is formed at a side surface of the connectionprotrusion 30 by a grinding process.

That is, although an inclined surface with a constant angle may beformed at the rear end surface of the auxiliary pipe in order todisassemble the auxiliary pipe 6 from the main pipe 4 easily by agrinding process, it is not desirable because, in such a case, theauxiliary pipe 6 can be disassembled from the main pipe 4 when a userdoes not want.

However, in a case that the inclined portion 30 b with the predeterminedinclined angle β is formed at the left side of the auxiliary pipe inaccordance with the present invention, when a user wants to disassemblethe auxiliary pipe 6 from the main pipe 4, the user rotates theauxiliary pipe 6 or the main pipe 4 so that an edge of the penetrationhole 4 a of the main pipe 4 can press the connection protrusion 30 alongthe left side surface inclined portion 30 b of the connection protrusion30, and the connection protrusion 30 is pressed and disassembled fromthe penetration hole 4 a. At the state, when the user takes out theauxiliary pipe 6 from the main pipe 4, the auxiliary pipe 6 and the mainpipe 4 are entirely dissembled.

At this time, in a case that the side surface inclined portion is formedat both sides, not a side, of the connection protrusion 30, since thetop portion 32 of the connection protrusion 30 is formed very sharply,the connection protrusion 30 can be detached more easily rather thanbefore, in the present invention, the inclined portion 30 b is formedonly at a side surface (for example, a right or left side surface).

Also, although it is not shown, penetration holes 4 a and 6 a are formedat the external circumference surface of the auxiliary pipe 6 and themain pipe 4, respectively, and the elastic member 20 in which theconnection protrusion 30 is attached at the upper surface thereof isattached to the internal circumference surface of the auxiliary pipe 6.Thereafter, it is desirable that an elastic wire (not shown) is insertedthrough the auxiliary pipe 6 and the main pipe 4 in order to connectthem.

On the other hand, a hooking protrusion(not shown) is formed at apredetermined portion of the internal circumference surface of the mainpipe 4 in order not to be inserted the auxiliary pipe 6 with a lengthbeyond a constant length. At a state that the connection protrusion 30of the auxiliary pipe 6 is inserted to the penetration hole 4 a of themain pipe 4 completely, when the auxiliary pipe 6 is more entered to theinside of the main pipe 4, since an excessive external force is appliedto the connection protrusion 30 and so the connection protrusion 30 canbe damaged, the hooking protrusion blocks the entry of the end portionof the auxiliary pipe 6.

In the connection member of a movable type camp with a gooddetachability, as constructed above, since the elastic member 20 inwhich the connection protrusion 30 is attached at the upper surfacethereof is attached to the internal circumference surface of theauxiliary pipe 6, when inserting the end portion 10 of the auxiliarypipe 6 to the main pipe 4 through the opening 8 of the main pipe 4, theopening 8 of the main pipe 4 presses to the front surface inclinedportion 30 a of the connection protrusion 30, so that the connectionprotrusion 30 is pressed naturally by the opening 8 of the main pipe 4and moved downwardly. At the state, the auxiliary pipe 6 is continuallyinserted to the inside of the main pipe 4 and when the connectionprotrusion 30 is reached to the position of the penetration hole 4 a,the connection protrusion 30 is protruded and connected at the upper endportion of the penetration hole 4 a by the elastic member 20.

In contrast, when disassembling the auxiliary pipe 6 and the main pipe4, a user rotates the auxiliary pipe 6 or the main pipe 4 so that anedge of the penetration hole 4 a of the main pipe 4 can press theconnection protrusion 30 along the left side surface inclined portion 30b of the connection protrusion 30.

Thereafter, the connection protrusion 30 is pressed by the side surfacecircumference portion of the penetration hole 4 a, moved downwardly anddisassembled from the penetration hole 4 a. At the state, when the usertakes out the auxiliary pipe 6 from the main pipe 4, the auxiliary pipe6 and the main pipe 4 are entirely dissembled.

Accordingly, the main pipe 4 and the auxiliary pipe 6 as a connectionmember of a movable type camp with a good detachability in accordancewith the present invention make move the connection protrusion 30downwardly without contacting directly with the connection protrusion30, so the assemble and disassemble processes are very convenient.

On the other hand, the connection member of a movable type camp with agood detachability in accordance with the present invention do notlimited above embodiment and can be modified various types withoutdeparting the scope of the technical concept of the present invention.

INDUSTRIAL APPLICABILITY

As discussed earlier, according to a connection member of a movable typecamp with a good detachability in accordance with the present invention,in the main pipe and the auxiliary pipe, an inclined surface portion isformed at the connection direction of the connection protrusion formedat the auxiliary pipe and an inclined surface portion is also formed ata side portion of the connection protrusion, so that since theconnection protrusion 30 can be moved downwardly, although a user do notpress the connection protrusion with one's own finger and the like,there are advantages that the assemble and dissemble processes are veryconvenient.

1. In a framework connection structure of a camp in which the frameworkis constructed by a main pipe having a predetermined diameter andopenings formed its both ends, respectively and an auxiliary pipeinserted to the main pipe for forming the framework, a connection memberof a movable type camp with a good detachability comprising: the mainpipe and the auxiliary pipe having a penetration hole at a predeterminedportion of its external circumference surface, respectively; an elasticmember having a “⊃” shape attached to the inside of the auxiliary pipeso that a constant elastic force is generated toward the insidecircumference portion from the center of the auxiliary pipe; and aconnection protrusion formed at the top surface of the upper end portionof the elastic member, which is inserted to the penetration holes of themain pipe and the auxiliary pipe and exposed to the outside, whereby theassemble and disassemble processes of the framework are performedeasily.
 2. The connection member of a movable type camp with a gooddetachability of claim 1, wherein the connection protrusion has a frontsurface inclined portion formed with a predetermined angle α by agrinding process at its front surface portion, so that when connectingthe main pipe and the auxiliary pipe, the opening of the main pipe canpress the connection protrusion.
 3. The connection member of a movabletype camp with a good detachability of claim 1, wherein the connectionprotrusion has a side surface inclined portion formed with apredetermined angle β by a grinding process at its side surface portion,so that when disassembling, when the auxiliary pipe is rotated toward adirection, the penetration hole of the main pipe can press the sidesurface inclined portion of the connection protrusion.